1bfa0a5cdSXianjun Jiao# Known issue 2bfa0a5cdSXianjun Jiao 3d971c386SJiao Xianjun- [Network issue in quick start](#Network-issue-in-quick-start) 4d971c386SJiao Xianjun- [antsdr e200 UART console](#antsdr-e200-UART-console) 5bfa0a5cdSXianjun Jiao 6d971c386SJiao Xianjun## Network issue in quick star 7bfa0a5cdSXianjun Jiao 8bfa0a5cdSXianjun Jiao- OS: Ubuntu 22 LTS 9bfa0a5cdSXianjun Jiao- image: [openwifi img](https://drive.google.com/file/d/1fb8eJGJAntOciCiGFVLfQs7m7ucRtSWD/view?usp=share_link) 10bfa0a5cdSXianjun Jiao 117ac12f7cSJiao XianjunIf can't ssh to the board via Ethernet for the 1st time, you might need to delete /etc/network/interfaces.new on SD card (on your computer). 127ac12f7cSJiao Xianjun 13*42e8e675SJiao XianjunIf still can't ssh the board via Ethernet, you should use UART console (/dev/ttyUSBx, /dev/ttyCH341USBx, etc.) to monitor what happened during booting. 14d971c386SJiao Xianjun 15d971c386SJiao Xianjun## antsdr e200 UART console 16bfa0a5cdSXianjun Jiao 17dcda3265SJiao XianjunIf can't see the UART console in Linux (/dev/ttyUSB0 or /dev/ttyCH341USB0), according to https://github.com/juliagoda/CH341SER, you might need to do `sudo apt remove brltty` 18